Damn I would have floored it and tried to race him, not knowing it was a cop.
They use Chargers around here, the locals got their hands on a black unmarked one, even has wheels on it so no way to tell if its a cop or not. They have been putting it to good use, I see it on various streets writing tickets all the time.
The local's mostly have Crown Vic's but they do have quite a few Chargers as well.